NASA’s Cassini spacecraft spotted fresh rainfall on Saturn’s moon Titan
21 January, 2019, 15:29
A recent study published in the journal Icarus suggested that Saturn's rings are a short-lived feature and they will be completely gone in around 300 million years. The so-called "Grand Finale" signaled that the end was nigh for the probe and, on September 15, 2017, it burned up in the gas giant's atmosphere, bringing a spectacular 13 years of science in Saturn's orbit to a poignant close. Though mission scientists expected to detect some wispy elemental gases in this "empty" region, Cassini's particle instrumentation found a smorgasbord of elements and molecules "raining" from the rings down to the planet's atmosphere.
Gravity readings Cassini took from Saturn (rather than its rings) suggest the planet has a mass around 15-18 times that of Earth. "The more we learn about Saturn's rings, the more fragile and transient they seem to be".
Before swooping in between the planet and its rings, Cassini orbited the planet outside of its rings.
Saturn's moon Titan, which some scientists have theorized could be the home to extraterrestrial life due to the presence of surface liquid and dust storms, is providing another surprise to researchers - the sight of fresh rainfall.
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The 16th seed will face Croatia's Borna Coric or Frenchman Lucas Pouille next. "Now I'm not happy, but I'm not depressed, either. Showcasing his disappointment, Zverev added: "I mean, I played bad".
Data from Cassini is also helping to solve a long-running mystery: How long is a day on Saturn?
"T$3 he rings have less than 100 million years to live".
We want our model predictions to match our observations.
The findings challenge the notion favoured by some astronomers that the rings developed soon after Saturn formed about 4.5 billion years ago along with the other planets, including the earth.
The same measurements captured by Cassini also revealed something else about Saturn - the layers of its atmosphere rotate around the planet at different speeds, until you get at least 9,000 kilometres (5,590 miles) in.
The figure has eluded planetary scientists for decades, because the gas giant has no solid surface with landmarks to track as it rotates, and it has an unusual magnetic field that hides the planet's rotation rate.
Scientists had previously relied on density waves, or ripples, through the rings caused by the motion of the 62 moons in Saturn orbit to estimate ring mass.
Now, with the precision measurements made by Cassini's final orbits, we know that there is no hidden mass.
In that time, it discovered six more moons around Saturn, three-dimensional structures towering above Saturn's rings, and a giant storm that raged across the planet for almost a year. So the planet could've existed without its rings for an extremely long time - up to 4,490,000,000 years. Scientists will continue to investigate exactly how the rings came to be, but their young age bolsters a theory that a comet may've strayed too close to the planet, was ripped to shreds and then became part of the rings. One of the main results of his analysis is the new calculation of Saturn's rotation rate, which has been surprisingly hard to measure.
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Cohen also has said he helped arrange payments at Trump's direction to silence women who claimed to have had affairs with Trump. Although the report has yet to be confirmed, if it is true, the U.S. president could be found guilty of perjury.
Svitolina upstaged Keys, whom she defeated for the first time in her career, 6-2, 1-6, 6-2 in one hour and 40 minutes of play. But the American's resolve crumbled when Svitolina held off five break points then gained an advantage in the next game.
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The Wildcats raced out of the locker room with a 10-2 run, highlighted by a Johnson "and one" and a 3-pointer from Herro. Auburn has two straight big SEC road games, facing South Carolina Tuesday and Mississippi State next Saturday.
They have got to maintain the reputation that they can win in anyone's backyard now and must not take the foot off the pedal. The right-hander had an average of 92 previous year and Kohli was ahead of him after 14 matches.
The Yankees may not be interested in the big-ticket free agents this offseason, but they continue to load up at the next level. Ottavino figures to be one of New York's primary setup men for closer Aroldis Chapman .
Reset she did but it wasn't immediate, with Halep looking the stronger player for the first 15 minutes of the third set. But Williams delivered a fatal blow to break for a 4-3 lead and made no mistake in booking her spot in the next round.
Essentially, this new film will ignore Paul Feig's 2016 reboot which launched a female-led version of the Ghostbusters . Such a d*ck move. "And I don't give f**k I'm saying something!" The new film is scheduled for Summer 2020. "...
Halep did not provide details of her injury, but a herniated disc cut short her season a year ago . "She's very solid. He looked very exhausted . "I don't think I'll be able to get rid of the smile on my face any time soon".
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A Wind Chill Advisory has been issued in the wake of a winter storm that brought rain, snow and ice to the Pittsburgh region. Wind chill values will likely be 15 to 25 below zero through the entire day Monday and even extending into Tuesday morning.
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Van Dyke's wife of 17 years, Tiffany, described how the family has had financial trouble and temporarily lost health insurance. Jason Van Dyke was sentenced to 81 months in prison for his second-degree murder conviction.